Automatic oil curtain cleaning device for falling channel of quenching furnace
By installing an automatic cleaning oil curtain device in the drop channel of the quenching furnace, and using the push plate cleaning component to clean the internal passage of the oil injector head, the problem of blockage of the oil curtain structure is solved, automatic cleaning is achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202420560702.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-03-22
AI Technical Summary
In the existing quenching furnace, the oil injection channel of the oil curtain structure is easily blocked, resulting in the oil curtain failure and cannot prevent oil fume and exhaust gas from entering the furnace. The furnace needs to be shut down and removed and the drop channel is cleaned. The process is cumbersome and affects production efficiency.
A automatic cleaning oil curtain device for drop passage of quenching furnace is designed, including a fuel injector head and a push plate cleaning assembly combined with the fuel injector head. The internal passage of the fuel injector head is pushed and pulled through the push plate cleaning assembly to prevent blockage.
Automatic cleaning of the internal channels of the fuel injection head is achieved, avoiding blockage, saving manpower and time, no need to shut down the machine and production, and improving production efficiency.
Smart Images
Figure CN222766796U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to quenching furnaces, and more precisely to an automatic cleaning oil curtain device for a quenching furnace drop channel. Background Art
[0002] The quenching process refers to a metal heat treatment process in which a metal workpiece is first heated to a predetermined temperature, then maintained for a period of time, and then immediately immersed in a quenching medium for rapid cooling. The quenching process can transform the austenite in the metal into martensite or bainite, and then tempering at different temperatures can greatly improve the metal's rigidity, hardness, wear resistance, fatigue strength and toughness, thereby meeting the different use requirements of various mechanical parts and tools.
[0003] A quenching furnace for quenching process generally uses quenching oil as the quenching medium. The metal workpiece falls from the top of the quenching oil tank into the quenching oil tank for rapid cooling. When the high-temperature metal workpiece falls into the quenching oil, a large amount of oil smoke and exhaust gas will be generated. In order to prevent the oil smoke and exhaust gas from entering the furnace, an oil curtain structure is generally provided in the falling channel of the workpiece. Oil is sprayed through the oil curtain structure to form an oil curtain that blocks the falling channel, so as to prevent the oil smoke and exhaust gas from entering the furnace, causing carbon deposition in the furnace, falsely high carbon potential, and blackening of the workpiece color.
[0004] The oil curtain structure generally includes an oil injection channel that is horizontally arranged in the falling channel. Generally, the quenching oil is circulated, and the carbon black and impurities in the quenching oil gradually increase, which easily blocks the oil injection channel, causing the oil curtain to fail and fail to prevent oil smoke and exhaust gas from entering the furnace. At present, when the oil injection channel is blocked, it is necessary to stop the furnace and remove the falling channel, and then clean the debris in the oil injection channel. After cleaning, the molding and installation are completed, and then the temperature is increased. The process is cumbersome, the workload is large, and it will affect production efficiency.
[0005] In summary, the art needs to solve the technical problem that the oil curtain structure's oil injection channel needs to be disassembled and cleaned after being clogged, so as to reduce the cleaning workload and improve production efficiency. Utility Model Content
[0006] In view of this, the purpose of the utility model is to provide an automatic oil curtain cleaning device for the falling channel of a quenching furnace, including an oil spray head and a push plate cleaning assembly combined with the oil spray head, and the push plate cleaning assembly is used to push and pull the internal channel of the oil spray head to prevent the internal channel of the oil spray head from being blocked.
[0007] In order to achieve the above-mentioned purpose, the utility model provides an automatic oil curtain cleaning device for the falling channel of a quenching furnace, which is installed in combination with the falling channel of the quenching furnace. The automatic oil curtain cleaning device for the falling channel of the quenching furnace includes an oil spray head and a push plate cleaning assembly installed in combination with the oil spray head. The oil spray head has an oil spray nozzle connected to the inside of the falling channel, and the push plate cleaning assembly can be plugged into the oil spray nozzle.
[0008] Preferably, the fuel injection head has a fuel injection cavity inside, and the fuel injection nozzle is connected to the fuel injection cavity and the falling channel.
[0009] Preferably, the push plate cleaning assembly includes a mounting member, a cylinder, a push rod and a movable plate, the cylinder is installed in combination with the fuel injector head through the mounting member, the cylinder is drivingly connected to the push rod, the push rod penetrates into the fuel injection chamber, the movable plate is located inside the fuel injection chamber, and the movable plate is connected to the push rod, the movable plate is at least partially in contact with the bottom surface of the fuel injection chamber, and the movable plate is driven by the push rod to insert or pull out the fuel injector nozzle.
[0010] Preferably, a sealing gasket is provided at the contact position between the mounting member and the fuel injection head.
[0011] Preferably, a sealing gasket is provided at the contact position between the mounting member and the cylinder.
[0012] Preferably, the cylinder is a nitrogen driven cylinder, and the cylinder is controlled by a manual rotary valve or a solenoid valve.
[0013] Preferably, the push plate cleaning assembly comprises a fixing member, and the movable plate is connected to the push rod via the fixing member.
[0014] Preferably, the movable plate is an L-shaped plate having a vertical edge and a horizontal edge, the fixing member is a bolt group, the fixing member penetrates the vertical edge of the movable plate and is connected to the push rod, and the bottom surface of the horizontal edge of the movable plate contacts the bottom surface of the injection chamber.
[0015] Compared with the prior art, the advantage of the automatic oil curtain cleaning device for the falling channel of a quenching furnace disclosed by the utility model is that the automatic oil curtain cleaning device for the falling channel of a quenching furnace can automatically clean the internal channel of the oil spray head without dismantling the falling channel, thus saving manpower and eliminating the need to stop production. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] like Figure 1 The figure shows a cross-sectional view of an automatic cleaning oil curtain device for a falling channel of a quenching furnace according to the utility model when it is installed in combination with the falling channel.
[0018] like Figure 2The figure shows a cross-sectional view of an automatic cleaning oil curtain device for a quenching furnace drop channel in an uncleaned state according to the utility model.
[0019] like Figure 3 The figure shows a cross-sectional view of a cleaning state of an automatic cleaning oil curtain device for a falling channel of a quenching furnace according to the utility model. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] like Figure 1 and Figure 2 As shown, the present application provides an automatic oil curtain cleaning device for the falling channel of a quenching furnace, which is installed in combination with the falling channel 1 of the quenching furnace. The automatic oil curtain cleaning device for the falling channel of the quenching furnace includes an oil spray head 20 and a push plate cleaning assembly 21 installed in combination with the oil spray head 20. The oil spray head 20 has an oil spray nozzle 201 that is connected to the inside of the falling channel 1, and the push plate cleaning assembly 21 can be plugged into the oil spray nozzle 201. By controlling the push plate cleaning assembly 21 to be inserted into the oil spray nozzle 201, the debris that may cause the oil spray nozzle 201 to be blocked can be pushed out, and the oil spray nozzle 201 can be cleaned automatically without dismantling the falling channel, saving manpower and without stopping the machine. The push plate cleaning assembly 21 can be manually controlled or automatically controlled. If the automatic control is adopted, the push plate cleaning assembly 21 can be set to run automatically at regular intervals.
[0022] For details, see Figure 2 and Figure 3 The fuel injection head 20 has a fuel injection chamber 200 inside, the push plate cleaning assembly 21 is partially installed inside the fuel injection chamber 200, and the fuel injection nozzle 201 is connected to the fuel injection chamber 200 and the falling channel 1.
[0023] The push plate cleaning assembly 21 includes a mounting member 210, a cylinder 211, a push rod 212, a fixing member 213 and a movable plate 214. The cylinder 211 is mounted in combination with the fuel injection head 20 through the mounting member 210. The cylinder 211 is connected to the push rod 212 by transmission. The push rod 212 penetrates into the fuel injection chamber 200 through the fixing member 213. The movable plate 214 is located inside the fuel injection chamber 200, and the movable plate 214 is connected to the push rod 212 through the fixing member 213. The movable plate 214 at least partially contacts the bottom surface of the fuel injection chamber 200, and the movable plate 214 is driven by the push rod 212 to insert or pull out the fuel injection nozzle 201. By inserting or pulling out the fuel injection nozzle 201 through the movable plate 214, the sundries that may cause the fuel injection nozzle 201 to be blocked can be pushed out, and the fuel injection nozzle 201 can be cleaned automatically, effectively preventing the fuel injection nozzle 201 from being blocked.
[0024] Furthermore, a sealing gasket is provided at the contact position between the mounting member 210 and the oil spray head 20 to prevent oil and gas leakage. In order to further improve the sealing effect, a sealing gasket is also provided at the contact position between the mounting member 210 and the cylinder 211.
[0025] The cylinder 211 is driven by nitrogen, and the cylinder 211 can be controlled by a manual rotary valve or a solenoid valve. When the cylinder 211 is controlled by the solenoid valve, the solenoid valve can be started regularly by an external electronic control, and cleaning can be performed automatically and regularly.
[0026] The movable plate 214 is an L-shaped plate having a vertical side and a horizontal side. The fixing member 213 is a bolt group. The fixing member 213 penetrates the vertical side of the movable plate 214 and is connected to the push rod 212. The bottom surface of the horizontal side of the movable plate 214 contacts the bottom surface of the injection chamber 200. Preferably, the bottom surface roughness of the horizontal side of the movable plate 214 is 1.6, ensuring that the bottom surface of the horizontal side of the movable plate 214 is flat and smooth, and preventing jamming when the movable plate 214 is pushed out or retracted.
[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An automatic cleaning oil curtain device for a quenching furnace drop channel, characterized in that: The automatic oil curtain cleaning device for the quenching furnace's falling channel comprises an oil spray head and a push plate cleaning assembly installed in combination with the oil spray head. The oil spray head comprises an oil spray nozzle connected to the inside of the falling channel, and the push plate cleaning assembly can be plugged into the oil spray nozzle.
2. The automatic cleaning oil curtain device for the falling channel of the quenching furnace according to claim 1, characterized in that: The fuel injection head has a fuel injection cavity inside, and the fuel injection nozzle is connected with the fuel injection cavity and the falling channel.
3. The automatic cleaning oil curtain device for the quenching furnace drop channel according to claim 2, characterized in that: The push plate cleaning assembly includes a mounting part, a cylinder, a push rod and a movable plate. The cylinder is mounted in combination with the fuel injection head through the mounting part. The cylinder is drivingly connected to the push rod. The push rod penetrates into the fuel injection chamber. The movable plate is located in the fuel injection chamber and is connected to the push rod. The movable plate is at least partially in contact with the bottom surface of the fuel injection chamber and is driven by the push rod to insert or pull out the fuel injection nozzle.
4. The automatic cleaning oil curtain device for the falling channel of the quenching furnace according to claim 3, characterized in that: A sealing gasket is arranged at the contact position between the mounting member and the fuel injection head.
5. The automatic cleaning oil curtain device for the falling channel of the quenching furnace according to claim 3, characterized in that: A sealing gasket is arranged at the contact position between the mounting member and the cylinder.
6. The automatic cleaning oil curtain device for the falling channel of a quenching furnace according to claim 3, characterized in that: The cylinder is a nitrogen driven cylinder, and the cylinder is controlled by a manual rotary valve or a solenoid valve.
7. The automatic cleaning oil curtain device for the falling channel of a quenching furnace according to claim 3, characterized in that: The push plate cleaning assembly comprises a fixing member, and the movable plate is connected to the push rod via the fixing member.
8. The automatic cleaning oil curtain device for the falling channel of a quenching furnace according to claim 7, characterized in that: The movable plate is an L-shaped plate having a vertical side and a horizontal side. The fixing member is a bolt group. The fixing member penetrates the vertical side of the movable plate and is connected to the push rod. The bottom surface of the horizontal side of the movable plate contacts the bottom surface of the injection chamber.